.Container{
    border: 1px #000 solid;
    min-height: 100px;
    padding: 20px;
}
.page{
    padding: 20px;
    height: 100%;
    border-radius: 12px;
}
.material{
    cursor: move;
    border: #000 dashed 1px;
    padding: 10px 8px;
    margin: 10px;
    display: inline-block;
    border-radius: 4px;
    background: #fff;
    &:hover{
        background: #ccc;
    }
}

.BlueBorder{
    border: 2px solid blue;
}

.BlackBorder{
    border: 2px solid black;
}